Notes
Technical writing on electromagnetic simulation, numerical methods, and computational physics.
June 16, 2026 · 8 min read
A qubit is a quantum object, but the chip it lives on is a set of microwave structures. Designing one means walking from geometry to fields to a Hamiltonian, and most of the error budget is set at the metal edges.
June 2, 2026 · 4 min read
Photonic chips route light through micrometer-scale structures. Designers use simulation to find the modes that can travel, the devices that scatter them, and the compact models that make whole circuits designable.
May 26, 2026 · 4 min read
A modern chip package is a shared electromagnetic environment. Simulation predicts how dies, power rails, and structures couple, not just whether two traces leak.
May 19, 2026 · 3 min read
The three dominant families of numerical methods for electromagnetic simulation, what each is good at, and where each one breaks down.
May 12, 2026 · 1 min read
A plain-language introduction to electromagnetic simulation: what electromagnetic radiation is, how we model it on a computer, and the kinds of devices it helps us design.
May 5, 2026 · 3 min read
The order of accuracy of a numerical method is a structural property, not a tuning parameter. In three-dimensional wave problems, the difference between second-order and sixth-order convergence is the difference between needing 32× more degrees of freedom per decade of accuracy and needing 3×.